井下无定向导线测量

Underground Traverse Survey without Orientation

在巷道延伸测量中 ,经常会遇到测量控制点被破坏 ,剩下的点又彼此不通视的情况 ,为了节省作业时间 ,不影响生产 ,应用井下无定向导线测量 ,可以恢复该段导线 ;该法是把两已知控制点看着是定向时两垂球线连接点 ,在两控制点间按所设计的精度进行相应等级的导线联测 ,并用两井几何定向的井下连接导线解算方法进行计算 ,使原来按一般导线测量方法不能解决的点位坐标问题得以解决。

In tunnel extend survey, we usually find the survey control point is broken and the remaining points also can't see with each other. In order to save work-time and not to affect the production, using the underground traverse survey without orientation, it can recover this segment traverse. This method is to make the two known control points as the two iron-ball line connect point in orientation. Between the two known control points, making a traverse survey of the homologous grade to the designed accuracy, and using the method of two well orientation calculate. Thus, it can solve the problem of point coordinate that the common traverse survey method can't solve before. This method is very practical in the underground survey and has the extensive and applied foreground.